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Geologists and volcanologists making preparations at the Galeras stratovolcano hours before the eruption. The Galeras tragedy occurred when six scientists and three tourists were killed as a result of the January 1993 eruption of the Galeras stratovolcano in Colombia. Geologist Stanley Williams and six others on the volcano survived.
The Ringold Formation represents sand and gravel placed by the Columbia River between 9 and 3 million years ago. These deposits overlay cooled lava erupted as part of the Columbia River Basalt Group, a type of volcanic eruption known as flood basalts erupting from fissures across eastern Washington and Oregon that were unrelated to the Cascade Range. [11]
Two major caldera-forming eruptions have occurred, the first about 560,000 years ago in an eruption which expelled about 15 cubic kilometres (3.6 cu mi) of material. The second some time between 40,000 and 150,000 years ago, in a smaller but still sizable eruption of 2 cubic kilometres (0.48 cu mi) of material.
Eruption Source(s) 71,000 to 250,100+ Mount Tambora: 7 Indonesia: 1815 1815 eruption of Mount Tambora, Year Without a Summer: 36,000+ Krakatoa: 6 Indonesia: 1883 1883 eruption of Krakatoa: 30,000 Mount Pelée: 4 Martinique: 1902 1902 eruption of Mount Pelée: 23,000 Nevado del Ruiz: 3 Colombia: 1985 Armero tragedy: 20,000~ (estimated) Santorini ...
Name Elevation Coordinates Last eruption meters feet Azufral: 4070: 13,353: 930 BC ?: Cerro Bravo: 4000: 13,123: 1720 ± 150 years : Cerro Machín: 2749: 9,019: 1180 ...
A.D. 79: Mount Vesuvius, Italy. Mount Vesuvius has erupted eight times in the last 17,000 years, most recently in 1944, but the big one was in A.D. 17. One of the most violent eruptions in history ...
Before the 2018 eruption, it erupted 40 times over the past 85 years. But only the 2018 eruption caused a tsunami wave that affected the southern coast of Sumatra (Lampung province) and the ...
By August 1997, much of the southern part of the island, including most of Plymouth, had been buried by pyroclastic flows. During this period, the southern portion of the island, including the capital Plymouth, was evacuated three times. The first evacuation lasted from 21 August 1995 – 3 September 1995, after the first phreatic eruption.